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Board updates accessory dwelling unit ordinance to reflect new state law, allows more detached units

3289778 · May 13, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

The Board of Supervisors adopted amendments to the county ADU (Accessory Dwelling Unit) ordinance to align with state law changes effective January, including allowing additional detached ADUs on multifamily lots and easing parking and junior ADU rules.

Contra Costa County supervisors on May 13 approved revisions to the county's accessory dwelling unit (ADU) ordinance (Chapter 82-24) to conform the local code to state law changes that took effect in January.

County planning staff told the board the update is the ninth revision since the ordinance was adopted in 1987 and reflects recent state changes. Major…

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